CN202143760U - Hydraulic power and hinge connecting rod type rapid lifting aerial ladder truck - Google Patents
Hydraulic power and hinge connecting rod type rapid lifting aerial ladder truck Download PDFInfo
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- CN202143760U CN202143760U CN201120053728U CN201120053728U CN202143760U CN 202143760 U CN202143760 U CN 202143760U CN 201120053728 U CN201120053728 U CN 201120053728U CN 201120053728 U CN201120053728 U CN 201120053728U CN 202143760 U CN202143760 U CN 202143760U
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Abstract
The utility model provides a hydraulic power and hinge connecting rod type rapid lifting aerial ladder truck. The lifting aerial ladder truck comprises a hydraulic power part, a mechanical transmission part and a frame, wherein, power is provided by a hydraulic mechanism; a hinge connecting rod type mechanical device is matched with the hydraulic mechanism to rapidly lift a lifting platform of the aerial ladder truck; and an aerial ladder mounted on the lifting platform is expanded by virtue of an aerial ladder telescoping mechanism, so as to raise a working bucket to upper air to conduct operation. The lifting aerial ladder truck provided by the utility model has the advantages that the volume is small, the lifting height and the expanding speed are greatly increased, ideal driving force can be provided for the lifting of aerial ladder trucks of various types, the manufacturing process of the lifting aerial ladder truck is simple, the construction cost is low, and the working efficiency of the aerial ladder truck can be greatly improved.
Description
Technical field
The present invention relates to the motor ladder that fire-fighting and rescue uses, especially relate to the fast lifting motor ladder that utilizes hydraulic power and link-hinge-type mechanical device.
Background technology
The aerial ladder car generally adopts the hydraulic power aerial ladder that stretches, and operating platform is gone up and down.This equipment convenient operation and control, reliable operation, present most aerial ladder cars are all taked this equipment.Though use the up-down motor ladder of hydraulic power to have above-mentioned advantage merely, its complex structure, hoisting velocity is slow.The up-down motor ladder comprises: aerial ladder, hydraulic cylinder, piston, sealing device, transmission device etc.; The control system has: pressure sensor, temperature sensor, position sensor and computer system etc. constitute complete up-down motor ladder system.Because the restriction of the frame for movement of hydraulic means own, particularly large-sized hydraulic cylinder is processed complex not only, involves great expense; On fire fighting truck, install and also receive many restrictions in space, therefore, simple at present use hydraulic power promote aerial ladder the up-down motor ladder; Its aerial ladder height is many at 20-30 rice; Add the height of water column, common fire fighting truck generally only can provide the fire-fighting work below the 40-50 rice height, only can reach the height of 10 multi-storey buildings.Along with the development of city size, floor is more and more high, and the fire-fighting of the building of 40-50 layer fire fighting utilizes present fire fighting truck not meet the demands, and high-rise building catches fire and can be found everywhere owing to water column reaches the report that little height affects rescue work adversely.
Simultaneously, the lifting action of present up-down motor ladder aerial ladder relies on hydraulic power merely, and the hydraulic cylinder stretching is slow; And the structure of aerial ladder is a section expansion successively; The speed of launching is slower, is unfavorable for that usage platform is raised to high-rise floor fast, affects best rescue time adversely.
Summary of the invention
The objective of the invention is to overcome the inherent shortcoming of the up-down motor ladder of simple hydraulic power, propose a kind of employing hydraulic power, utilize the mechanical lever action principle simultaneously; Cooperate advanced electronic control system; Hydraulic power and link-hinge-type mechanical device are organically combined, realize a kind of simple in structurely, up-down power is big; Lifting is fast, efficient is high, promotes the fast lifting motor ladder that aerial ladder launches height greatly.
For realizing the object of the invention; A kind of hydraulic power link-hinge-type fast lifting motor ladder is proposed; This up-down motor ladder is made up of automobile chassis, support, elevating mechanism, workbench and flexible aerial ladder, and said elevating mechanism 4 is installed on the support 15 at said automobile chassis 7 middle parts, and the top of elevating mechanism 4 is provided with said workbench 3; Said flexible aerial ladder 2 is installed in the workbench 3; Flexible aerial ladder 2 front ends are provided with work bucket 1, and the rear end is provided with aerial ladder headstock 20, and workbench 3 belows are provided with self-balanced upper rotary 11; Wherein, said elevating mechanism 4 is a kind of hydraulic power link-hinge-type structure, comprises going up and down outer fixed frame, assistance for lifting oil cylinder and elevating screw device.
Said elevating mechanism 4 adopts 3 grades of lifting mode; Each grade elevating mechanism 4 is by the outer fixed frame 42 that goes up and down, vertically oil cylinder 26 and elevating screw device 43 are formed; 3 grades of elevating mechanisms 4 adopt series system, and the expansion successively through each grade elevating mechanism 4 rises to the high-altitude with workbench 3.
Said elevating mechanism 4 increases by a cover wirerope system; Comprise fixedly flexible steel wire 5, ground mooring anchor 51 and traction electric machine 52; Fixedly flexible steel wire 5 returns ground again from the bottom that the traction electric machine 52 of automobile chassis 7 bottoms is moved workbench 3 to always, is fixed on the ground mooring anchor 51 that is distributed in certain distance around the automobile chassis 7; For flexible steel wire 5 tractive force is provided through traction electric machine 52, further the state of stable elevation motor ladder when work high above the ground.
Said flexible aerial ladder 2 comprises aerial ladder telescoping mechanism 10, self-balanced upper rotary 11 and supporting mechanism, and said flexible aerial ladder 2 is the socket of more piece ladder, and aerial ladder telescoping mechanism 10 is a link-hinge-type mechanism, and flexible aerial ladder 2 utilizes aerial ladder telescoping mechanism 10 to launch by joint; Supporting mechanism is formed with support bar 22 by promoting hawser 21; Can change the angle of flexible aerial ladder 2 liftings; The self-balanced upper rotary 11 that is provided with through workbench 3 belows reaches balance, makes the work bucket 1 that is in flexible aerial ladder 2 front ends further reach the operating position of differing heights.
Said flexible aerial ladder 2 comprises slide track 38 and slide railcar 39, and wherein, slide track 38 is set in parallel in the inboard of flexible aerial ladder 2, and said slide railcar 39 is slided on said slide track 38, for work bucket 1 provides transport channel.
Said hinge connecting rod structure adopts articulated structure to form by a plurality of connecting rods 27; Said vertical oil cylinder 26 is hinged with connecting rod 27 respectively;
Said elevating screw device comprises forward lead screw 16, above said support 15, laterally install, said forward lead screw 16 two ends be provided with respectively have internal thread about strand ear seat 18, said strand ear seat 18 moves back and forth in forward lead screw 16 effect lower edge forward lead screw 16;
Above said hinge connecting rod mechanism, force bearing plate 29 is set; Said force bearing plate 29 belows are provided with slide rail 30; Said force bearing plate 29 has two strand ear seats 36 that slide that are positioned at middle fixedly strand ear seat 37 and two ends, and said two slips are twisted ear seats 36 and can between force bearing plate 29 and slide rail 30, be slided;
The connecting rod of said hinge connecting rod mechanism the top respectively with 3 pin joints of fixing strand ear seat 37 and 36 formation of 2 slide bearings; Said load-bearing seat 17, about strand ear seat 18, about vertical oil cylinder hinge ear seat 35 respectively and rod hinge connection.
The drive unit of said forward lead screw 16 drives driving wheel 33 by hydraulic motor 32, screw mandrel and screw mandrel driving follower 34 is formed; Wherein, Screw mandrel drives driving wheel 33 and is meshed with screw mandrel driving follower 34; Hydraulic motor 32 drives driving wheel 33 through screw mandrel and drives screw mandrel driving follower 34, and then drives forward lead screw 16 rotations.
Be provided with 4 on 4 limits of workbench and overlap elevating mechanisms 4, through the forward lead screw 16 of hydraulic motor 34 driven in synchronism 4 cover elevating mechanisms 4) 4 cover elevating mechanisms 4 are promoted and decline synchronously.
In the frame structure that said elevating mechanism 4 constitutes elevator 24 is set, elevator switching door 19 is set in a side of elevator 24; In the space between elevator 24 and frame structure, power supply control valve belt lacing 44, hydraulic oil pipe belt lacing 45, accurate appearance sensor 46 and the water cannon pipe racks joint 47 of hanging down of laser are installed.
The design's hydraulic power link-hinge-type fast lifting motor ladder; Adjustable height can be set according to actual needs and make; Workbench up to the height rescue operation of 60-100 rice can be provided, and workbench is equivalent to the height of 20-40 floor, and aerial ladder arm front end connects fire water monitor; Add the height of water column, can put out a fire the building of height more than the 80-120 rice.Can reach the height of 30-50 floor, satisfy the fire fighting requirement of most of high-rise buildings basically; The design also has the characteristics of quick vertical lift, and whole uphill process can be accomplished in tens seconds; Life saving hanging cradle and slide that work bucket on the aerial ladder top disposes can shift fire fighter and indicator of trapped personnel fast.
Description of drawings
Fig. 1 is the overall structure figure of fast lifting motor ladder;
Fig. 2 shows that fast lifting motor ladder workbench is in the rise state;
Fig. 3 has shown the various states of the expansion of aerial ladder;
Fig. 4 shows the frame for movement of aerial ladder;
Fig. 5 shows the hydraulic power and the link-hinge-type frame for movement of fast lifting motor ladder;
Fig. 6 shows the arrangement of link-hinge-type machinery.
Among the figure
1 work bucket, 13 oil pipe tep reels
2 flexible aerial ladder 14 fire extinguishing water tanks
21 promote hawser 15 supports
22 support bars, 16 positive and negative leading screws
23 aerial ladder headstocks, 17 load-bearing seats
3 rotary working platforms, 18 strand ear seats
4 elevating mechanisms, 19 elevator switching doors
41 hinge connecting rod mechanisms, 20 aerial ladder headstocks
Outer fixed frame 24 elevators of 42 up-downs
43 elevating screw devices, 25 driven bevel pinions
44 power supply control valve belt lacings, 26 vertical oil cylinders
45 hydraulic oil pipe belt lacings, 27 connecting rods
47 water cannon pipe racks joints, 29 force bearing plates
5 fixing flexible steel wire 30 slide rails
51 ground mooring anchors, 31 bearings
52 traction electric machines, 32 driving bevel gears
6 legs, 33 planetary reducers
7 automobile chassises, 34 hydraulic motors
8 fire main tep reels, 35 strand ear seats
9 fire foam pipe racks dishes, 36 strand ear seats
10 aerial ladder telescoping mechanisms, 37 strand ear seats
11 self-balanced upper rotary, 38 slide tracks
12 cable tep reels, 39 slide railcars
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, to further explain of the present invention.
The present invention's motor ladder that goes up and down is made up of carrier chassis, lowering or hoisting gear and electronic control system four parts.Wherein, to adopt length be that 12 meters haulage vehicle chassis refit forms on the carrier chassis; Lowering or hoisting gear comprises hydraulic power part and mechanical driving part, and the hydraulic power part is made up of elevating screw, a plurality of high-voltage oil cylinder and hydraulic motor; Mechanical drive department is divided into the hinge connecting rod structure, and characteristics are to adopt articulated structure between each connecting rod of hinge connecting rod structure; Electronic automatic control system is made up of level-regulating system, centre-of gravity shift control system and lift control system.
The overall structure figure of the up-down motor ladder that Fig. 1 is; Show that motor ladder is in the state of parking, this moment, elevating mechanism 4 was in the recovery state.The automobile chassis 7 general long heavy trucks of 10-12 rice that adopt, automobile engine is that whole up-down motor ladder provides power, particularly hydraulic power.Fire-fighting fire fighting conventional equipments such as configuration fire main tep reel 8, fire foam pipe racks dish 9, cable tep reel 12, oil pipe tep reel 13 and fire extinguishing water tank 14 in the compartment; 4 angles, automobile chassis 7 bottoms are provided with 4 legs 6 altogether, when promoting aerial ladder, adopt machinery or hydraulic means to launch leg 6, for the up-down motor ladder provides more stable basis.
Fig. 2 shows that fast lifting motor ladder workbench is in the rise state; Workbench 3 rises to the high-altitude through the expansion of elevating mechanism 4; The elevating mechanism 4 of present embodiment adopts three grades of lifting mode; Be in series by three hinge connecting rod mechanisms 41; Three hinge connecting rod mechanisms 41 are a kind of link-hinge-type structure of using hydraulic power, and wherein, each grade hinge connecting rod mechanism 41 comprises the outer fixed frame 42 that goes up and down, vertically oil cylinder 26 and elevating screw device 43; Three grades of elevating mechanism 4 one-level one-levels series connection are provided with, and the expansion successively through elevating mechanism rises to the high-altitude with workbench 3.
In order to keep going up and down the stable of motor ladder; Except the leg 6 that utilizes 4 expansion; The present invention also provides a cover wirerope system, comprises fixedly flexible steel wire 5, ground mooring anchor 51 and traction electric machine 52, and fixedly flexible steel wire 5 is from bottom that the traction electric machine 52 of automobile chassis 7 bottoms is moved workbench 3 to always; Return ground again; Be fixed on the ground mooring anchor 51 that is distributed in certain distance around the automobile chassis 7, tractive force be provided, the further state of stable elevation motor ladder when work high above the ground for flexible steel wire 5 through traction electric machine 52.
Fig. 3 has shown the deployed condition of aerial ladder; Elevating mechanism 4 on the automobile chassis 7 launches, and workbench 3 is thus lifted to the high-altitude, and flexible aerial ladder 2 is installed on the rotary working platform 3, along with workbench 3 rises to the high-altitude; Then; Flexible aerial ladder 2 utilizes aerial ladder telescoping mechanism 10 that multi-stage expansion ladder one is saved and trails; Flexible aerial ladder 2 also has by promoting the supporting mechanism that hawser 21 and support bar 22 are formed; Can change the angle of flexible aerial ladder 2 liftings, make the work bucket 1 that is in flexible aerial ladder 2 front ends further reach the operating position of differing heights; Simultaneously, the self-balanced upper rotary 11 that is provided with through workbench 3 belows reaches balance.
Fig. 4 shows the frame for movement of aerial ladder; While has also shown the state that the leg 6 of automobile chassis 7 installations trails.Flexible aerial ladder 2 is the socket of multi-joint telescoping ladder, and aerial ladder telescoping mechanism 10 is a link-hinge-type mechanism, and flexible aerial ladder 2 utilizes aerial ladder telescoping mechanism 10 to launch by joint, and the bucket 1 of will working rises to the high-altitude; Simultaneously, joint extension ladder inboard is provided with the parallel slide track 38 of twice, supplies slide railcar 39 to slide above that, for work bucket 1 provides transport channel.
Fig. 5 shows hydraulic power and the link-hinge-type frame for movement that this fast lifting motor ladder uses; As shown in the figure, the mechanical transmission structure of this fast lifting motor ladder is fixed on the support 15, and the vertical oil cylinder 26 of hydraulic drive part is made up of 3 high-voltage oil cylinders, is in the two ends and the centre of hinge connecting rod structure respectively; The hinge connecting rod structure is by adopting articulated structure to form between a plurality of connecting rods 27.Support 15 tops are horizontally installed with the positive and negative leading screw 16 of elevating screw device; Positive and negative leading screw 16 two ends are provided with the strand ear seat 18 with internal thread respectively; The central point of support 15 is provided with load-bearing seat 17, and positive and negative leading screw 16 1 ends are installed driven bevel pinion 25, with driving bevel gear 32 engagements; Hydraulic motor 34 drives driving bevel gear 32, driven bevel pinion 25 through planetary reducer 33; Drive positive and negative leading screw 16 and rotate, strand ear seat 18 moves to the center or the two ends of support 15 under the driving of positive and negative leading screw 16 synchronously.
According to the utility model; In whole connecting rod hinge points 28 of hinge connecting rod mechanism; 9 key points are arranged; Be respectively two the some A, the B that are in the middle of the linkage below, be positioned at two some C, the D of below, the linkage left side, be positioned at 3 bloster hinge contacts 28 of two some C ', D ' and force bearing plates 29 of below, the right; Wherein, the B point is fixing point on the load-bearing seat 17 at support 15 centers, and A point and intermediate vertical oil cylinder 26 are hinged, the pin joint of strand ear seat 18 about D, D ' point are respectively, the pin joint of the hinged seat 35 of vertical oil cylinder 26 about C, C ' are respectively.
Fig. 6 shows link-hinge-type mechanical arrangement mode.On 4 limits that promote workbench one cover hinge link-type elevating mechanism is set respectively, forms 4 limit shape frame structures.3 grades of hoisting mechanisms for present embodiment adopts in the upper level hoisting mechanism socket next stage hoisting mechanism, form structure arrangement as shown in Figure 5.The frame structure of each grade rises synchronously and falls under the driving of controlling organization, and 3 level structures launch according to order from the inside to surface successively.
Duty: open the hydraulic system of fast lifting motor ladder, hydraulic oil gets into 3 vertical oil cylinders 26 and hydraulic motor 34 rapidly, in 9 pin joints; The B point is fixed, and hydraulic motor 34 drives forward lead screw 16, about strand ear seat 18 respectively under the promotion of forward lead screw 16; Driving D and D ' point moves to the center of support 15; Under the effect of 3 vertical oil cylinders 26, C point and C ' point move up in vertical direction respectively with the A point when move at the center together; The motion of above-mentioned pin joint changes the angle between the hinge connecting rod 27, analyzes the rhombus quadrangle that one of them is made up of connecting rod 27; When original state (not promoting as yet); Two angles are greater than 90 ° up and down, about two angles by less than 90 °, two angles are by diminishing gradually greater than 90 ° up and down; About two angles become gradually greatly, promote force bearing plate 29 and rise.
State analysis from 3 pin joints 28 supporting force bearing plate 29; Because the variation of angle between the connecting rod, middle pin joint 28 relative force bearing plates 29 are fixed, and the pin joint 28 at two ends moves to the center from the two ends of force bearing plate 29 respectively; The thrust that pin joint 28 receives is descending progressively to be changed; Simultaneously, the speed that pin joint 28 moves up is progressively accelerated again from slow to fast, and the workbench that is fixed on above the force bearing plate 29 is risen to the height that needs.
The aerial ladder telescoping mechanism 10 of aerial ladder adopts identical structure to launch, and considers the weight of only bearing work bucket 1 and staff, and it is lighter relatively to load, and only adopts the above-mentioned link-hinge-type elevating mechanism of a cover to satisfy the demand.
The hydraulic power unit of this fast lifting motor ladder can adopt the high pressure gear oil pump like 320kg/cm2, the piston diameter 10cm of oil cylinder, and piston rod thrust is 25 tons, up to a hundred tons of ton weights of 12 oil cylinder liftables, the article of the 5-10 ton that can easily go up and down;
Confirm to overlap vertical oil cylinder 26 numbers of using in the hinge link-type machinery according to the load of motor ladder, for example, 2,4 or more vertical oil cylinder 26 can be set in every grade of elevating mechanism respectively one.
Rotating mechanism is adopted in the workbench below, and rotatable almost 360 degree carry the work bucket on the aerial ladder, and load is 500 kilograms but work struggles against, and can let 3-5 name fireman work in the high-level bucket simultaneously.Be deployed into the work bucket from vehicle and be transported to the high-altitude, be less than 3 minutes time.
Work bucket can be installed high intensity illumination lamp and stretcher foremost, and the space on work bucket both sides can be used, and portable induced-draft fan can also be installed was that the scene of a fire dispels poisonous dense smoke on the right when the water cannon fire extinguishing was installed on the left side.
Except fire pump, water cannon, also dispose the capstan winch of 5 tons of traction strength before this car headstock, the tailstock has been equipped with lighting apparatus, and searchlight can illuminate tens of meters scopes of periphery after afterbody rises.
The native system electronic control system has adopted various advanced persons' sensor technology, servo control technique and software control particular algorithm in a large number, and the whole system electronics is controlled automatically, and it is convenient and safe to guarantee that system uses.
Operating personnel only need send control instruction, are accurately accomplished according to program by electronic control system.
Electronic automatic control system is made up of following components:
(1) horizontal servo control:
Use the hydraulic pressure support arm, in work, play the effect of support.Adjust to the complete level of all directions according to level meter during use.By two of base level control system and platform level-regulating systems independently system form:
(a) base level control system:
Three kinds of states are arranged:
★ frames collapsed state:
State when whole system is parked, base level control system is in closed condition;
★ frames folding and unfolding motion state:
This moment, frame was in the motion process, and base level control system is in holding state, waited for the frames signal that puts in place, and the side starts working;
★ base level system auto state:
After the frames stretching, extension put in place, four feets landed, and level-regulating system is started working, through the horizontal parameter of sensor detection pedestal, and control executing agency's (hydraulic pump), dynamically whole base level is adjusted in control, makes whole pedestal be in level;
(b) platform level-regulating system:
Two states is arranged:
The ★ holding state:
Pack up, rise when hoistable platform is in and the state when descending;
The ★ automatic control state:
After rising put in place, the platform level-regulating system was started working; Through the horizontal parameter of sensor detection platform, control executing agency's (hydraulic pump), dynamically control adjustment whole flat level makes whole flat be in level;
The work bucket also is designed with the computer stabilising arrangement; Because the liftoff 50-60 rice of work bucket; Walking about of top personnel brings sizable vibrations all can for whole aerial ladder, and the wind blows aerial ladder also can cause and rock in addition, adopts the computer stabilising arrangement to keep the balance in the work bucket.
(2) skew SERVO CONTROL:
After the platform rising puts in place, use laser collimation device, the offset error of detection platform and pedestal; The traction dynamics of four oblique rollering steel silk ropes of control in real time; The dynamic relative position of adjustment workbench and pedestal, the vertical stationarity of platform is kept in overlapping of the center of gravity of maintenance platform center of gravity and pedestal.
(3) the servo electronic control system of going up and down:
Detect the traction dynamics of oblique rollering steel silk rope through sensor in real time; Skew instruction according to laser detection control system; The servo electronic control system of going up and down is dynamically adjusted the traction dynamics, and the skew difference of correction platform and pedestal keeps the center of gravity of platform to overlap with the good of pedestal center of gravity.
Whole electronic-controlled installation is equipped with behaviour's remote controller, and the operator is struggling against apart from straighforward operation aerial ladder in 50 meters scopes of car body and work.
Described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further detailed description, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. hydraulic power link-hinge-type fast lifting motor ladder; This up-down motor ladder is made up of automobile chassis, support, elevating mechanism, workbench and flexible aerial ladder; It is characterized in that said elevating mechanism (4) is installed on the support (15) at said automobile chassis (7) middle part, the top of elevating mechanism (4) is provided with said workbench (3); Said flexible aerial ladder (2) is installed in the workbench (3); Flexible aerial ladder (2) front end is provided with work bucket (1), and the rear end is provided with aerial ladder headstock (20), and workbench (3) below is provided with self-balanced upper rotary (11); Wherein, said elevating mechanism (4) is the hydraulic power link-hinge-type structure, and this structure comprises the outer fixed frame that goes up and down, vertically oil cylinder and elevating screw device.
2. fast lifting motor ladder according to claim 1; It is characterized in that; Said elevating mechanism (4) adopts 3 grades of lifting mode, and each grade elevating mechanism (4) is made up of the outer fixed frame (42) that goes up and down, vertical oil cylinder (26) and elevating screw device (43), and 3 grades of elevating mechanisms (4) adopt series system; Through the expansion successively of each grade elevating mechanism (4), workbench (3) is risen to the high-altitude.
3. fast lifting motor ladder according to claim 1; It is characterized in that; Said elevating mechanism (4) also comprises a cover wirerope system, comprises fixedly flexible steel wire (5), ground mooring anchor (51) and traction electric machine (52), and fixedly flexible steel wire (5) is moved the bottom of workbench (3) to always from the traction electric machine (52) of automobile chassis (7) bottom; Return ground again; Be fixed on and be distributed in automobile chassis (7) on every side on the ground mooring anchor (51) of certain distance, for flexible steel wire (5) tractive force is provided through traction electric machine (52), further the state of stable elevation motor ladder when work high above the ground.
4. fast lifting motor ladder according to claim 1; It is characterized in that; Said flexible aerial ladder (2) comprises aerial ladder telescoping mechanism (10), self-balanced upper rotary (11) and supporting mechanism; Said flexible aerial ladder (2) is the socket of more piece ladder, and aerial ladder telescoping mechanism (10) is a said hydraulic power link-hinge-type mechanism, and flexible aerial ladder (2) utilizes aerial ladder telescoping mechanism (10) to launch by joint; Supporting mechanism is formed by promoting hawser (21) and support bar (22); Be used to change the angle of flexible aerial ladder (2) lifting; The self-balanced upper rotary (11) that is provided with through workbench (3) below reaches balance, makes the work bucket (1) that is in flexible aerial ladder (2) front end promote the operating position of differing heights.
5. fast lifting motor ladder according to claim 4; It is characterized in that; Said flexible aerial ladder (2) comprises slide track (38) and slide railcar (39), and wherein, slide track (38) is set in parallel in the inboard of flexible aerial ladder (2); Said slide railcar (39) goes up at said slide track (38) and slides, for work bucket (1) provides transport channel.
6. fast lifting motor ladder according to claim 1 is characterized in that, said hinge connecting rod structure adopts articulated structure to form by a plurality of connecting rods (27); Said vertical oil cylinder (26) is hinged with connecting rod (27) respectively;
Said elevating screw device comprises forward lead screw (16); Laterally install in said support (15) top; Said forward lead screw (16) two ends be provided with respectively have internal thread about strand ear seat (18), said strand ear seat (18) moves back and forth in forward lead screw (16) effect lower edge forward lead screw (16);
Above said hinge connecting rod mechanism, force bearing plate (29) is set; Said force bearing plate (29) below is provided with slide rail (30); Said force bearing plate (29) has two strand ear seats (36) that slide that are positioned at middle fixedly strand ear seat (37) and two ends, and said two strand ear seats (36) that slide can slide between force bearing plate (29) and slide rail (30);
The connecting rod of said hinge connecting rod mechanism the top respectively with 3 pin joints of fixing strand ear seat (37) and 2 slide bearings (36) formation; Said load-bearing seat (17), about strand ear seat (18), about vertical oil cylinder hinge ear seat (35) respectively and rod hinge connection.
7. fast lifting motor ladder according to claim 1; It is characterized in that; The drive unit of said forward lead screw (16) drives driving wheel (33) by hydraulic motor (32), screw mandrel and screw mandrel driving follower (34) is formed, and wherein, screw mandrel drives driving wheel (33) and screw mandrel driving follower (34) is meshed; Hydraulic motor (32) drives driving wheel (33) through screw mandrel and drives screw mandrel driving follower (34), and then drives forward lead screw (16) rotation.
8. fast lifting motor ladder according to claim 1; It is characterized in that; 4 cover elevating mechanisms (4) are set on 4 limits of workbench,, 4 cover elevating mechanisms (4) are promoted synchronously and descend through the forward lead screw (16) of hydraulic motor (34) driven in synchronism 4 cover elevating mechanisms (4).
9. fast lifting motor ladder according to claim 1 is characterized in that, in the frame structure that said elevating mechanism (4) constitutes elevator (24) is set, and in a side of elevator (24) elevator switching door (19) is set; In the space between elevator (24) and frame structure, power supply control valve belt lacing (44), hydraulic oil pipe belt lacing (45), accurate appearance sensor (46) and the water cannon pipe racks joint (47) of hanging down of laser are installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120053728U CN202143760U (en) | 2011-03-03 | 2011-03-03 | Hydraulic power and hinge connecting rod type rapid lifting aerial ladder truck |
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|---|---|---|---|
| CN201120053728U CN202143760U (en) | 2011-03-03 | 2011-03-03 | Hydraulic power and hinge connecting rod type rapid lifting aerial ladder truck |
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